Home / 39,784,548.40-59,676,822.60-20,621,179.60

Finding the Fourth Proportional to 39,784,548.40, 59,676,822.60 and 20,621,179.60

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Solution

The fourth proportional to 39,784,548.40, 59,676,822.60 and 20,621,179.60 is: 30,931,769.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,784,548.40 : 59,676,822.60 = 20,621,179.60 : x
  2. Step 2: Convert to fraction form
    39,784,548.40/59,676,822.60 = 20,621,179.60/x
  3. Step 3: Cross multiply
    39,784,548.40x = 59,676,822.60 × 20,621,179.60
  4. Step 4: Simplify right side
    39,784,548.40x = 1,230,606,476,791,939
  5. Step 5: Solve for x
    x = 1,230,606,476,791,939/39,784,548.40
  6. Step 6: Final answer
    x = 30,931,769.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.